1、第一部分 教材知識研究 九年級（全） Units 12,辨析by, with與 in,考點(diǎn)一,練講重難點(diǎn),【考點(diǎn)搶測】,1. We can save money _ cooking our own meals instead of eating outside. A. by B. to C. for D. with 2. Whats wrong with you, Jack? I hurt my finger when cutting an apple _ a knife. A. with B. by C. after D. in,A,A,3. Do you know the man _ bl

2、ue? Yes, he is my English teacher. A. with B. in C. by D. on 4. Most of students in our class would like to go to school _ bus. A. with B. on C. by D. in,B,C,【滿分點(diǎn)撥】,這三個(gè)介詞都可以表示“通過;由；用”，但具體的用法不同。 by側(cè)重用某種手段或交通工具, 后跟名詞或動(dòng)名詞。如： I learn English by making word cards. 我通過制作單詞卡片學(xué)英語。,with后常接某種有形的工具，也可以表示用某種材料填

3、充，后接名詞或代詞。如： This boy plays the piano with his feet. 這個(gè)男孩用他的腳彈鋼琴。 in后常接表示語言、語調(diào)或者顏色的單詞。如： Ms.Wang is chatting with her foreign students in French. 王老師正用法語與她的外國學(xué)生聊天。,辨析lay與lie,考點(diǎn)二,【考點(diǎn)搶測】,5. Dont _ to those who trust you, or you will lose them one day. A. lay B. lied C. lain D. lie 6. My sister has_ in

4、 bed for two hours because of a headache. A. lies B. lay C. laid D. lain 7. He took off his coat and _ it on the bed. A. laid B. lies C. lay D. lied,B,D,A,【滿分點(diǎn)撥】,lie作不及物動(dòng)詞，意為“躺，臥；撒謊，說謊”, lie down躺下。 lie作可數(shù)名詞，意為“謊言;假話”。,warn的用法,考點(diǎn)三,【考點(diǎn)搶測】,8. She warned them _ more careful next time, or they would be punished. A. be B. to be C. being D. been 9. The headmaster warned us against _ computer